EP0483531A1 - Conteneur pliable - Google Patents

Conteneur pliable Download PDF

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Publication number
EP0483531A1
EP0483531A1 EP91116660A EP91116660A EP0483531A1 EP 0483531 A1 EP0483531 A1 EP 0483531A1 EP 91116660 A EP91116660 A EP 91116660A EP 91116660 A EP91116660 A EP 91116660A EP 0483531 A1 EP0483531 A1 EP 0483531A1
Authority
EP
European Patent Office
Prior art keywords
plate
side plates
folding container
plates
bottom plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91116660A
Other languages
German (de)
English (en)
Other versions
EP0483531B1 (fr
Inventor
Yukio Sugita
Kazuo Aizawa
Tatsuya Sankyo Bldg. 902 Nakamura
Tatsuya Nitta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Petrochemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP26297390A external-priority patent/JPH04140597A/ja
Application filed by Nippon Petrochemicals Co Ltd filed Critical Nippon Petrochemicals Co Ltd
Publication of EP0483531A1 publication Critical patent/EP0483531A1/fr
Application granted granted Critical
Publication of EP0483531B1 publication Critical patent/EP0483531B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
    • B65D11/182—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected comprising two side walls hinged along the sides of a base panel and to an upper frame and two other side walls being hinged only to the upper frame

Definitions

  • the present invention relates to a folding container in which panel materials are used and more particularly to a folding container which can be folded flat when not used and can be assembled with ease for use.
  • folding containers conventionally there have been used a folding container which is obtained by setting up members which are molded by injection molding, a container obtained by coupling and setting up panel materials and the like.
  • the former folding container prepared by injection molding is high in intensity so that it is used for transportation and conveyance of relatively heavy weight baggages.
  • the cost of plant and equipment for metal mold and the like is high and the container itself is costly.
  • the latter folding container obtained by coupling together the panel material is low in cost.
  • it has such drawbacks that it is inferior in air-tightness and hence it is not suitable for transportation and conveyance of heavy weight baggages and the like.
  • the folding container using the panel materials is being used in specific fields of clothing containing boxes, transport boxes for vegetables and fruits and the like.
  • a container of the type in which as shown in Fig. 14, a plastic hollow plate 1 which is prepared by welding or adhering surface sheets 4 and 5 to the both surfaces of an intermediate sheet 3 having follow swellings 2 of circular or other configuration formed on one surface or both thereof and made of polyethylene or other synthetic resin material is cut into rectangular pieces of predetermined size is sometimes used.
  • the corrugated card-board container though it is lightweight, can not guarantee such high intensity as that attained by the container made of metal plates and is inferior in air tightness and waterproof.
  • the container as disclosed in the above-mentioned Japanese Utility Model Publication No. 53-19877 has such drawbacks that since a shaft member which is bent to a rectangular configuration so as to act as a pivot should be put on the entire circumference of an upper edge portion (and/or a lower edge portion of the container, the manufacture thereof takes much time and labor and the edge portions become bulky, which is unfavorable for appearance's shake.
  • the container consisting of synthetic resin plates has such drawbacks that since many large-sized metal molds should be prepared in accordance with the size of the bottom plate, the side plates and the like, the manufacture thereof is costly and the plate thickness should be increased in order to attain sufficient intensity, which leads to an increase in material cost.
  • a plate material 1 as shown in Fig. 14 can be greatly improved by a plate material 1 as shown in Fig. 14.
  • the plate material 1 of the type as shown in Fig. 14 although it is highly resistive to tensile strength, is insufficient in resistivity to compressive force, flexural regidity, buckling intensity and the like acting in a facial direction.
  • the plate material 1 has also such drawback that exposed cut ends look ugly and it has difficulty in joining and connecting between an end of the plate material 1 and other members.
  • an object of the present invention is to provide a folding container which has sufficient intensity in spite of lightweight, is superior in air tightness, has good appearance and is easy to manufacture.
  • a folding container of the type consisting of rectangular bottom plate, side plates, front plate and rear plate and characterized in that
  • the support shaft of each shaft rod is provided so as to fit into a U-shaped bent portion of a frame rod at the lower or upper edge of the side plate. It is also preferable that a tongue is provided on any one of a portion of an outer peripheral surface of the shaft of each shaft rod and an inner surface of the U-shaped bent portion of the frame rod on corresponding side plate and a concave groove which is in engagement with the tongue is provided in the other of the portion and the inner surface such that the support shafts of the shaft rod can not be sliped out of the both side plates.
  • air tight seal members are provided on the lower edge of each side plate or the bottom plate, on the both side edges of the front and rear plates or the both side plates, and on the lower edge of each of the front and rear plates or the bottom plate.
  • seal member are provided at the upper edges of the both side plates, the front plate and the rear plate.
  • receiving holes which are bent such that corner portions of the shaft rod can pass therethrough are provided in corner portions on the both sides of the upper shaft rod there are provided end faces which are brought into sliding contact with the front and rear end faces of the side plate and end faces which abute against the left and right end faces of the front or rear plate on the both side corner portions of the upper shaft rod, and cover strips 35 which cover at least upper face and the outside of the corner portions are fitted onto the both side corner portions of the upper shaft rod.
  • a cover strip which covers a corner portion of the lower shaft rod is formed integrally with a cover of a corner of the bottom plate.
  • a panel used for the container of the above mentioned type is constructed such that a metal frame rod which is U-shaped in cross section is fitted onto and fixed to a circumferential edge of a nonmetal plate material which is fragile against the compressive force acting in a facial direction.
  • the frame rod comprises a base portion which is in opposition to the end of the plate material, a pair of side strips which extend from the both side edges of the base portion in the same direction so as to nippingly hold the circumferential edge portion of the plate material, and projections which are provided at the tips of the side strips in opposition to each other in the form of burrs for upon cutting operation, and the projections are fixed onto the surface of the plate material so as to bite into the plate material.
  • a pair of side strips which extend in the same direction from the both side edges of the base portion are provided on the outside of the frame rod and flexible covers provided with engagement strips which are in opposition to each other are put on the tips of the side strips such that the engagement strips are respectively brought into engagement with the leading edges of the frame rod.
  • the cover consists of straight covers for covering linear portions of the plate material and corner covers for covering corner portions of the plate material, horizontal and vertical portions of opposing engagement strips of the corner covers are respectively brought into engagement with orthogonal leading edges of the frame rod at the corner portions of the plate material and one straight cover is provided between two corner covers.
  • the both side plates in the assembled state, after the front and rear plates have been flipped up inwardly centering on the upper shaft rod, the both side plates are rotated and moved in a lateral direction centering on the support shaft of the lower shaft rod, by which since the upper ends of the both side plates are coupled together via the front and rear plate and the support shafts of the shaft rods extending from left and right ends thereof in forward and rearward direction, the both side plates fall down in a parallely arranged state and hence the entire folding container is folded into a flattened configuration.
  • the container can be readily assembled into a box-shape configuration.
  • the both side plates, the front plate and the rear plate are composed of panels consisting of plate materials such as synthetic resin plates, corrugated card-board-like plates of paper or synthetic resin and the like, frame rods and flexible synthetic resin covers, sufficient intensity can be attained in spite of lightweight thereof and the covers are brought into close contact with one another when assembled, by which the air tightness can be increased and the appearance is improved.
  • the projection on the frame rod is arranged to bite into the surface of the plate material, by which the frame rod is fixed to the plate material in a snap-in manner and hence will never be removed therefrom.
  • the frame rod is fixedly fitted onto the circumferential edge portion of the plate material, by which the compressive strength acting in facial direction of the plate material is increased and the end faces of the plate material are covered with the frame rod, by which good appearance can be ensured.
  • the appearance can be further improved and the compressive strength in the facial direction is further increased.
  • the opposing engagement strips of the cover are brought into engagement with the leading edges of the frame rods, by which the removal of the cover from the frame rod can be prevented.
  • the cover is composed of straight covers for covering the linear portions of the plate material and corner covers for covering the corner portions of the plate material, the opposing engagement strips of the corner cover are brought into engagement with the orthogonal leading edges of the frame rods at the corner portions of the plate material, and the opposing engagement strips of the straight cover are brought into engagement with the leading edges of the frame rods between the adjacent corner covers, by which the movement of the cover is avoided and the removal of the cover from the frame rod can be surely prevented.
  • the folding container according to the present invention comprises a bottom plate "A”, both side plates “B”, a front plate “C” and rear plate “D".
  • These plates “A” to “D” basically consist of panels as shown in Figs. 8 to 13. Therefore, firstly, the basic structure of the panel for use in the container will be described in detail and secondary embodiments of the folding container employing the panels will be described.
  • Figs. 8 and 9 show a first embodiment of a container panel 10 used in the container of the present invention.
  • 1 denotes a rectangular hollow plate material which is the same as that shown in Fig. 14, in which onto the both surfaces of an intermediate sheet 3 of a polyethylene or other synthetic resin material with hollow swelled-out portions 2 of circular or other configuration formed on one surface (or the both surfaces) thereof, surface sheets 4 and 5 of the same material as that the intermediate sheet or material which is different from that of the intermediate sheet are welded or adhered.
  • the frame rod 6 denotes a metal frame rod which is U-shaped in section.
  • the frame rod includes a base portion 7 which is in opposition to an end face 1a of the hollow plate material 1 and pair of side strips 8 and 8 which project inwardly from the both side edges of the base portion 7.
  • An end of the frame rod 6 is cut off at an inclined angle of about 45° so as to be spreaded out from the leading edge 8a of the side strip 8 toward the base portion 7.
  • the frame rod 6 is preferably formed by processing a plate material mode of iron and steel, aluminium and an alloy thereof, stainless steel or the like.
  • the frame rods 6, the entire length of each being almost the same as that of each side of the hollow plate material 1, are fitted onto the individual sides or a circumferential edge of the hollow plate material 1 such that the base portion 7 of each of the frame is brought into abutment against the end face 1a of the hollow plate material 1 the both side strips 8 and 8 thereof nip the plate material 1 therebetween and inclined end faces of the adjacent frame rods 6 are brought into close contact with each other Then, as shown in Fig. 9, the projection 9 bites into the surface of the plate material 1, by which each frame rod 6 is fixedly attached onto the plate material 1 to be formed into a panel 10.
  • the projection 9 of the frame rod 6 bites into the surface of the hollow plate material 1, so that the frame rod 6 will not be removed from the plate material 1 indiscriminately.
  • the circumferential edge portion of the plate material 1 is reinforced with the frame rods 6 which are fitted onto the circumferential edge portion thereof, by which the compressive strength acting in a facial direction of the plate material 1 is increased.
  • the inner surface of the frame rods 6 may be adhered to the plate material 1 with an adhesive in stead of or in addition to the biting of the projections 9 into the plate material 1.
  • cut-upward strips 8b which are oriented inwardly each other may be provided on portions of the side strips 8 of the frame rod 6 so as to be pressed into the plate material 1.
  • Figs. 11 to 13 show a second embodiment of the panel according to the present invention.
  • the same reference numerals are assigned to the same members in the first embodiment and hence the detailed description thereof is omitted.
  • Each of the corner covers 11 comprises an end strip 13 which is bent at right angles so as to cover a base portion 7 of each the vertical and horizontal frame rods 6 which are orthogonal to each other at the corner portion "P", a pair of side strips 14 of L-shaped or rectangular configuration in front view which are provided so as to extend inwardly from the both side edges of the end strip 13, and engagement strips 15 which are provided on inner edge portions of the side strips 14 in opposition to each other.
  • Distance "D1" between a horizontal portion of the end strip 13 of the corner cover 11 and a horizontal portion 15a of the opposing engagement strip 15 and a distance “D2" between a vertical portion of the end strip 13 and a vertical portion 15b of the engagement strip 15 are made almost equal to a vertical length "L1" of the side strip 8 of the horizontal frame rod 6 and a horizontal length "L2" of the side strip 8 of the vertical frame rod 6.
  • each engagement strip 15 from each side strip 14 is made almost equal to the thickness of each side strip 8 of each frame rod 6 (see Fig. 6).
  • the corner cover 11 is put on the corner portion "P" such that the end strip 13 and the side strips 14 are respectively brought into close contact with the outer surface of the base portion 7 of each frame rod 6 and the outer surfaces of the both side strips 8 of each frame rod 6 at each corner portion "P".
  • the horizontal portion 15a and the vertical portion 15b of the engagement strip 15 are respectively brought into engagement with the leading edge 8a of the side strip 8 of the horizontal frame rod 6 at the corner portion "P" and the leading edge 8a of the side strip 8 of vertical frame rod 6 at the corner portion "P", by which the forward or rearward, leftward or rightward and upward or downward removal of the corner cover 11 from the frame rod 6 can be prevented.
  • the straight cover 12 comprises a sheet end strip 16 which covers the base portion of the frame rod 6 on the linear portion "Q" and a pair of side strips 17 which project inward from the both side edges of the end strip 16. At the tip of each side strip 17, there is provided an engagement strip 18 so as to oppose to the engagement strip provided on the other strip 17.
  • each of the engagement strips 18 is brought into engagement with the leading edge 8a of each of the side strips 8 of each of the frame rod 6.
  • the plate material 1, the frame rods 6, the corner covers 11 and straight covers 12 constitute one sheet of container panels 10.
  • both side strips 14 and 17 are elastically deformed to be stretched and then the engagement strips 15 and 18 are disengaged from the leading edges 8a of the side strips 8 of the frame rod 6.
  • the container panel is constructed as in the second embodiment, not only the operation and effects which are the same as those attained in the first embodiment can be attained but a such effects can be attained that the appearance is further improved owing to the provision of the covers 11 and 12 and the covers 11 and 12 can be surely mounted on the frame rod simply by engaging the engagement strips 15 and 18 of the covers 11 and 12 with the leading edges 8a of the side strips 8 of the frame rod 6.
  • covers 11 and 12 can be readily attached and detached.
  • the panel used for the container of the present invention is not limited to the above mentioned embodiments but can be varied in a variety of ways as follows:
  • the folding container according to this embodiment comprises the bottom plate "A", the both side plates “B”, the front plate “C” and rear plate “D". These plates “A” to “D” are basically constituted by the panels for container shown in Figs. 11 to 13.
  • the synthetic resin corner covers 11 are put on the circumferential edge corner portions of the bottom plate "A” and the side plates "B".
  • the synthetic resin straight covers 12 are put on the edge portions of the linear portions between the adjacent corner covers 11 and 11 for the bottom plate “A” and the side plate "B".
  • tongues 19 which direct sideways are formed and a pivot portion 21a which constitutes the intermediate portion of a shaft rod 21 is fitted into a concave hole 20 in an inner surface of the tongue 19.
  • cover strips 22 On the upper surfaces of four corner covers 11 on the bottom plate "A", there are projectingly provided cover strips 22 which cover the corner portions 21c between the pivot portions 21a and the support shafts 21b on the shaft rods 21, linked with the tongue 19 of the straight covers 12.
  • the corner portion 21c of the shaft rod 21 is fitted onto an engagement hole 23 provided in the inner surfaces of the cover strip 22.
  • the support shaft 21b of the shaft rod 21 passes through a shaft hole 24 pierced in the end face of the lower corner cover 11 on the side plate "B” and is fitted into a notch 25 (see Fig. 5) formed in the corner portion of the plate material 1 within the lower frame rod 6.
  • a tongue may be provided on the outer periphery of the support shaft 21b and a concave groove which can engage with the tongue may be provided in the semicircular portion 26 of the frame rod 6.
  • both side plates "B” and “B” are pivotally supported on the both side portions of the bottom plate “A” by means of the support shafts 21b of the shaft rods 21 so as to be rotatable clockwise and counter clockwise.
  • the corner covers 11 for covering the plate material 1 are omitted.
  • the both ends of the lower straight cover 12 and the lower ends of the left and right straight covers 12 which direct in a vertical direction are obliquely cut out and the cut out portions are brought into abutment against each other, and rectangular notches 29 which direct outward are provided in the both end portions of the upper straight cover such that the upper ends of the left and right straight covers 12 which direct in the vertical direction are fitted into the notches 29.
  • tongues 30 which project outward and extend sideways are formed.
  • a pivotal portion 32a which is the intermediate portion of the shaft rod 32 which extends sideways is rotatably fitted into a concave hole 31 within each tongue 30.
  • Each of the support shafts 32b of the shaft rod 32 is fitted into a shaft receiving hole 24 in the corner cover 11 in symmetrical with the support shaft 21b of the lower shaft rod 21 of each side plate "B" in a vertical direction.
  • each of the support shafts 32b passes through the shaft receiving holes 24 pierced in the front and rear end faces of the supper corner cover 11 of the side plate "B” and is fitted into the rectangular notch 25 (see Fig. 5) provided in the upper frame rod 6 at the corner of the plate material 1.
  • each side plate "B" into which the support shaft 32b is fitted is constructed in the same manner as the lower portion thereof, so that the same reference numerals are merely assigned to same constitutional elements and the detailed description thereof is omitted.
  • a cover strip 35 which is of an outward quadrant-shaped configuration in plan is covered over a corner portion 32c between the pivotal portion 32a and the support shaft 32b of the upper shaft rod 32.
  • a curved receiving hole 33 is pierced in the lower surface of the cover strip 35 such that the corner portion 32c of the shaft rod 32 can be fitted thereinto through a slit 34.
  • One end face 35a of the cover strip 35 abutes against the front or rear end face of the side plate "B” and the other end face 35b which is perpendicular to the end face 35a abuts against an end face of the upper tongue 3 of the front plate "C” or the rear plate "D".
  • At least upper and outer side surfaces of the corner portion 32c of the shaft rod 32 are covered with the cover strip 35.
  • the front plate “C” and the rear plate “D” can be rotated about the pivotal portions 32a of the shaft rods 32 between the upper portions of the both side plates “B” and “B” and the both side plates “B” and “B” are coupled so as to be rotatable clockwise and counterclockwise in parallel with each other.
  • lip-shaped air tight seal members 36 made of elastomer such as rubber or the like are provided between the bottom plate “A” and each of the side plates “B", the front plate “C” and the rear plate “D", and the side edges of the both side plates “B” and the side edges of the front plate “C” and the rear plate “D".
  • a base portion 36a of the seal member 36 is fitted into a receiving groove 37 (see Fig. 6) provided in each corner cover 11 and held therein.
  • seal members 36 which are the same as the above mentioned ones are provided in the same manner as the above on the upper edges of the both side plates "B", the front plate "C” and the rear plate "D".
  • the upper ends of the both side plates "B" and “B” are coupled to each other through the support shafts 32b and 32b of the shaft rods 32 which project inward from the left and right end of the front plate "C” and the rear plate "D".
  • the inside of the container can be completely closed up tightly to the state that the container is made suitable to the storage of medical supplies, precision machines, clothes and the like which are susceptible to the intrusion of dust and moisture.
  • the bottom plate "A”, the both side plates “B” and “B”, the front plate “C” and rear plate “D” are constituted by panels consisting of the nonmetallic plate materials 1, the metallic frame rods 6, the flexible corner covers 11 and straight covers 12, by which the light weight, sufficiently strong and good looking container can be obtained.
  • the folding container according to the present invention may be varied and embodied, for example, in the following manner:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
EP19910116660 1990-10-02 1991-09-30 Conteneur pliable Expired - Lifetime EP0483531B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP103338/90U 1990-10-02
JP26297390A JPH04140597A (ja) 1990-10-02 1990-10-02 多目的パネル
JP10333890 1990-10-02
JP262973/90 1990-10-02

Publications (2)

Publication Number Publication Date
EP0483531A1 true EP0483531A1 (fr) 1992-05-06
EP0483531B1 EP0483531B1 (fr) 1994-01-05

Family

ID=26443988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910116660 Expired - Lifetime EP0483531B1 (fr) 1990-10-02 1991-09-30 Conteneur pliable

Country Status (2)

Country Link
EP (1) EP0483531B1 (fr)
DE (1) DE69100941T2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2060498A1 (fr) * 2007-07-03 2009-05-20 Obst- und Gemüse Handels GmbH Maria Jovanovic Boîte pliable
CN113173319A (zh) * 2021-04-05 2021-07-27 刘莹 一种饲料存放装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2351865A1 (fr) * 1976-05-18 1977-12-16 Soler Cuixeres Antonio Emballage pliable perfectionne
US4491231A (en) * 1983-05-13 1985-01-01 Family Distributors, Inc. Collapsible case
US4630747A (en) * 1986-04-30 1986-12-23 Chiang Ming Yao Gravitationally-operating collapsible basket

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2351865A1 (fr) * 1976-05-18 1977-12-16 Soler Cuixeres Antonio Emballage pliable perfectionne
US4491231A (en) * 1983-05-13 1985-01-01 Family Distributors, Inc. Collapsible case
US4630747A (en) * 1986-04-30 1986-12-23 Chiang Ming Yao Gravitationally-operating collapsible basket

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2060498A1 (fr) * 2007-07-03 2009-05-20 Obst- und Gemüse Handels GmbH Maria Jovanovic Boîte pliable
CN113173319A (zh) * 2021-04-05 2021-07-27 刘莹 一种饲料存放装置

Also Published As

Publication number Publication date
DE69100941D1 (de) 1994-02-17
EP0483531B1 (fr) 1994-01-05
DE69100941T2 (de) 1994-04-28

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